<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        原数值：{{mynum}}
        </br>
        转人民币：{{mynum | changeType("￥")}}
        </br>
        转美元：{{mynum | changeType("$")}}
    </div>
    <script src="./js/vue.js"></script>
    <script>
        var app = new Vue({
            el:"#app",
            data:{
                mynum:1230,
            },
            filters: {
                changeType:function(price, type){
                    console.log(price,type);
                    return type + price;
                }
            }
        })
    </script>
</body>
</html>